作者单位: | ZHANG Chun-gang,ZHAO De-wei,WANG Wei-ming,LI Rui-xin,YANG Sheng,LIU Yu-peng(Department of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning 116001, China);REN Ming-fa(State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian, Liaoning 116001, China) |